Excerpted from TFI's report: Depreciation Lives for Fiber Optic Cables in the Local Exchange Ray L. Hodges and Lawrence K. Vanston, Ph.D. Technology Futures, Inc. A more conservative forecast of the displacement of standard fiber in the interoffice and feeder environment can be developed by using the historical fiber-for-metallic-cable substitutions as analogies. In this case, it is assumed that both the interoffice and feeder fiber-for-fiber substitutions reach 1% by the end of 2003. Thereafter, the substitutions are assumed to follow the Fisher-Pry model at the same respective substitution rates as their historical analogues: the complete interoffice fiber-for-metallic substitution and the partially complete fiber-for-metallic feeder substitution. The resulting forecasts are shown in the figure above. These are then combined into a composite technology substitution curve. Please visit the report page, Depreciation Lives for Fiber Optic Cables in the Local Exchange for more information and purchasing details. Copyright © Technology Futures, Inc. All rights reserved. 13740 Research Blvd., Bldg. C Austin, TX 78750-1859 Toll Free: (800) TEK-FUTR - Local & Outside USA: (512) 258-8898 FAX: (512) 258-0087 - e-mail: info@tfi.com - http://www.tfi.com